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Weak connection device for flexible thin-walled tubes of spacecraft

A technology for thin-walled tubes and spacecraft, which is applied to space navigation equipment, space navigation vehicles, aircraft, etc. It can solve the problems of difficulty in closing and damage, and achieve the effect of simple structure, easy operation and high reliability

Active Publication Date: 2013-11-13
SHANGHAI AEROSPACE SYST ENG INST
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of local damage and difficulty in closing when flexible thin-walled pipes are connected by hard joints, the invention provides a weak connection device for flexible thin-walled pipes of spacecraft

Method used

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  • Weak connection device for flexible thin-walled tubes of spacecraft
  • Weak connection device for flexible thin-walled tubes of spacecraft
  • Weak connection device for flexible thin-walled tubes of spacecraft

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Embodiment Construction

[0009] Preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0010] figure 1 It is a schematic diagram of the weak connection device of the flexible thin-walled pipe of the spacecraft of the present invention, such as figure 1 As shown in the illustrated embodiment, the device includes a four-leg back support, a flexible spacer, a transverse limiting rod, and a longitudinal limiting piece. The above-mentioned weak connection device can realize the 90-degree connection between the flexible thin-walled pipe and the connected parts when the section changes. The four-leg back support is connected to the connected parts by glue or screw connection, and through holes are opened at the "four legs" of the four-leg back support to provide connection with flexible thin-walled pipes. The flexible thin-walled tube has four limit holes. The horizontal limit rod passes through the upper and lower limit holes and is fixed wi...

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Abstract

The invention relates to a weak connection device for a flexible thin-walled tube of a spacecraft. The device is composed of a four-leg back bracket, a flexible gasket, a transverse limit rod, and a longitudinal limit piece. It is characterized in that the four-leg back bracket is "four-leg type". The thin-walled board is connected to the connected parts by glue or screwing; the horizontal positioning rod is a screw rod, which passes through the horizontal limiting hole of the flexible thin-walled tube and is connected to the four-leg back bracket; the longitudinal limiting piece passes through the flexible thin-walled tube. The longitudinal limit hole of the wall tube is connected with the four-leg back bracket by a limit cotter pin; in order to reduce the impact of the connected parts on the flexible thin-wall tube, a flexible gasket is placed on the back of the four-leg back bracket. The invention solves the problem that the flexible thin-walled pipe cannot be connected at 90 degrees with the connected parts when the cross-section is deformed, and has the advantages of simple structure, light weight, high reliability and low cost.

Description

technical field [0001] The invention relates to the general technical field of spacecraft, in particular to a weak connection device for large-scale space structures. Background technique [0002] At present, it can be used for the connection of large-scale flexible thin-walled tube structures such as space antennas, solar cell arrays, solar panels, sun shields, and space habitats. Hard joints are mainly added at the ends to realize the connection with other structures through hard joints. connect. The main problem of using hard joints for structural connection is that when the flexible thin-walled tubes are folded, the closer to the hard joints at the end of the structure, the less obvious the change in the cross-sectional shape of the structure, resulting in a large number of wrinkles in the local area close to the hard joints. Accompanied by obvious stress concentration; this kind of local damage will affect the deployment accuracy of the flexible structure after repeate...

Claims

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Application Information

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IPC IPC(8): B64G1/22
Inventor 房光强彭福军
Owner SHANGHAI AEROSPACE SYST ENG INST
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